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Small, practical examples. Search by task or narrow things down below.

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Bash ScriptsParameter expansion

Read a variable whose name is stored in another variable

Bash Scripts: Indirect expansion performs one extra variable-name lookup.

Bash Scripts✓ Tested
Linux CommandsDates & process utilities

Read an ISO week date

Linux Commands: Use ISO week year, week number, and weekday directives together.

Linux Commands✓ Tested
PythonDates & time zones

Read an ISO week number

Python: Use isocalendar because ISO week years can differ from calendar years near January.

Python✓ Tested
JavaDates & time zones

Read an ISO week year and week number

Java: Use ISO week fields together because a week can belong to the previous calendar year.

Java✓ Tested
JavaScriptUTC date operations

Read an ISO-style weekday number

JavaScript: Convert Sunday from zero to seven when using Monday-through-Sunday numbering.

JavaScript✓ Tested
TypeScriptUTC date operations

Read an ISO-style weekday number

TypeScript: Convert Sunday from zero to seven when using Monday-through-Sunday numbering.

TypeScript✓ Tested
GitGetting Started

Read history for one path

Git: Read history for one path inside the disposable repository created by the input setup.

Git✓ Tested
JavaScriptPromises & iteration protocols

Recover from an expected promise rejection

JavaScript: Return a fallback from catch so later handlers receive an ordinary resolved value.

JavaScript✓ Tested
TypeScriptPromises & iteration protocols

Recover from an expected promise rejection

TypeScript: Return a fallback from catch so later handlers receive an ordinary resolved value.

TypeScript✓ Tested
Bash ScriptsDiagnostics & defensive scripting

Refuse to overwrite an existing file with redirection

Bash Scripts: Noclobber makes a plain greater-than redirection fail when the target already exists.

Bash Scripts✓ Tested
AngularLifecycle & observable data

Register cleanup through DestroyRef

Register cleanup through DestroyRef with a standalone Angular component and explicit browser behavior.

Angular✓ Tested
Bash ScriptsDiagnostics & defensive scripting

Reject a missing required configuration value

Bash Scripts: Check a required value explicitly and emit a controlled diagnostic before exiting.

Bash Scripts✓ Tested